JPH082937Y2 - Lock guard for plug for modular connector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a fall-out prevention device for a plug of a modular connector for connecting a communication device and a line.

[Conventional technology]

FIG. 2 is a perspective view of a conventional modular connector plug, and FIG. 4 is a perspective view of an example of a terminal using the conventional plug. In FIG. 2, 10 is a plug of a modular connector, 11 is a lock piece, which automatically locks when the plug 10 is inserted into a jack (not shown) of the modular connector. 12 is a slit for holding the communication cable. In FIG. 4, 20 is a connector type local modem, 10 is a conventional modular connector plug, 11 is a lock piece used when inserting and removing the plug 11, 30 is a line cable, and is connected to the contact of the plug 10. .

Since the plug 10 is locked by the lock piece 11 when it is inserted into the jack of the modular connector in this way, the plug 10 cannot be pulled out by merely pulling the line cable 30, and therefore it is used in many communication terminals.

[Problems to be solved by the device]

However, when using a large number of communication terminals as described above, if the communication cables connected to each terminal are entangled, one of the cables will push the lock piece of the plug of the other terminal. Or a user accidentally touches the lock piece of the plug of another terminal, the plug is pulled out, communication is lost due to poor connection or disconnection of the line, and serious failure occurs. was there.

The present invention prevents the above-mentioned troubles from occurring and prevents the lock piece of the plug from being pushed when the communication cable is entangled or touched by the plug inserted into the communication terminal. Intended to provide lock guard.

[Means for solving the problem]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention inserts into the rear portion of a plug of a modular connector so that the lock piece of the plug does not protrude. That is, the lock guard of the present invention is integrally formed in the shape of a cover by an elastic member, and has an upper surface having a predetermined gap with the upper portion of the plug and both side surfaces contacting both side portions of the plug. Then
In the direction of inserting and removing the plug at one end of the upper surface,
A predetermined notch portion into which a protruding locking piece can be loosely fitted is provided on the upper portion of the plug, and rail-shaped upper guides and end guides for guiding insertion and removal of the plug are provided on the both side surfaces, The end guide is provided with a projection at a predetermined position so that when the plug is inserted into the plug, the end guide is locked at the predetermined position.

[Action]

Since the present invention is configured as described above, it can be easily attached to the plug of the conventional modular connector and is locked at a predetermined position on the cable pull-out side of the plug, so that it can be directly attached to the jack of the terminal device. Since there is a notch part that can be inserted and the lock piece of the plug is loosely fitted, and the surface provided with the notch part is almost the same as the height of the lock piece, the cable of another terminal can be The lock piece will not be pushed even if it is entangled or accidentally touched, so
It is possible to prevent a failure caused by the plug coming off the terminal.

〔Example〕

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 3 is a perspective view of a plug using the embodiment of the present invention, and FIG. 5 is a perspective view of an example of a terminal using the embodiment of the present invention. Is.

In FIG. 1, 1 is a lock guard of the present invention, 2 is a top surface, 3 is a side surface, 4 is a cutout portion provided on the top surface 2, 5 is an upper guide provided on the side surface 3, and 6 is an end portion of the side surface 3. The end guides 7 provided are protrusions provided at predetermined positions on the end guide 6.

As shown in FIG. 1, the lock guard 1 of the present invention is formed of an elastic member and has three open faces, and a notch 4 is provided at one end of the upper face 2 in the plug insertion direction, and both sides 3 are provided. Is provided with an upper guide 5 and an end guide 6, and the distance between the upper guide 5 and the end guide 6 is adjusted to the thickness of the plug 10 of the modular connector.
Insert. As shown in FIG. 2, the lock piece is attached to the plug 10.
Although the protrusion 11 is provided, the upper surface of the lock guard 1 is the same as the height of the lock piece 11, and the width of the notch portion 4 is formed wider than the width of the lock piece 11. Therefore, as shown in FIG. 3, even if the plug 10 is inserted, the lock piece 11 is loosely fitted. Further, the protruding portion 7 of the lock guard 1 at a position where the rear end of the rear end and the plug 10 of the lock guard 1 matches because writes drop in the slit 12 of the plug 10, locking the guard 1 and the plug 10 is locked. Since the lower part of the lock guard 11 is opened and is made of an elastic member, the lock guard 11 can be inserted into the plug 10 because the lock guard 11 bends even when the protrusion 7 hits the bottom surface of the plug 10. . As shown in FIG. 5, when the plug 10 in which the lock guard 1 is fitted is used, the lock piece 1
The tip of 1 almost coincides with the surface of the lock guard 1 , so the lock piece 11 is not pushed even if the cable is entangled or touched by the hand, so the lock will not come off, and when you need to unlock it The lock can be easily released by pushing it with your fingertips or the tip of a driver.

[Effect of device]

Since the present invention is formed as described above, when installing and operating a large number of communication terminals connected to the line using the modular connector, the lock guard of the present invention of the plug of the modular connector is inserted. Since the lock piece of the plug does not protrude by fitting, the lock piece will not be pushed even if the cable is entangled or touched by mistake, so the plug will not come off and there will be poor contact due to disconnection of the plug or the line. There is an effect that it is possible to prevent a failure due to disconnection or the like.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of a conventional modular connector plug, FIG. 3 is a perspective view of a plug using an embodiment of the present invention, and FIG. FIG. 5 is a perspective view of an example of a terminal using the plug of FIG. 5, and FIG. 5 is a perspective view of an example of the terminal using the embodiment of the present invention. 1 …… Lock guard, 2 …… Top surface, 3 …… Side surface, 4 ……
Notch, 5 ... Top guide, 6 ... End guide, 7 ...
… Protrusions, 10 …… plugs, 11 …… lock pieces, 12 …… slits, 20 …… connector type local modem, 30 …… communication cables.

Claims (1)

[Scope of utility model registration request] 1. A lock guard, which is inserted into a rear end of a plug for a modular connector to prevent unlocking of the plug inserted into a jack of the modular connector, wherein the lock guard is made of an elastic member. Both sides contacting both sides of the plug and an upper surface connecting these both sides in the insertion direction are provided with the lower surface opened, and in the direction of inserting and removing the plug at one end of the upper surface,
A strip-shaped notch is provided to loosely fit the lock piece of the plug, and upper and lower end portions of the plug are in contact with the both side surfaces to guide the insertion of the plug and the rail-shaped upper guide and the end. Lock guides for modular connector plugs, wherein upper guides are provided at predetermined intervals from the upper surface, and projections are provided at predetermined positions on the end guides. .